So far it's starts of awesome. Not only my favourite character Deadpool is involved (and will be more involved when he will appear in Ms. Marvel comics) but also the concept alone.
Super-heroes becoming enemies of the world.
Super-villains becoming super-heroes.
Seriously, Bullseye makes better Hawkeye than the original one. The new team gives interesting fresh concept and their "love" to each other just makes it more interesting.
Thunderbolts (prelude to Dark Reign)
Dark Avengers (Dark Reign)